Performance of some grape cultivars under different Trellising systems [electronic resource] .

Includes reference.

This investigation was oooduc:ted to sbJdy the int1uence of some trellising systemsonyieldand its components, physical and cbemica1 cbaracteristics ofberries, morphological cbal3cteristics of vegetative growth, c:oefIicient of wood ripening, weight of pnmings, trunkvolume, cane oontentoftotalaubobydIates and cmlicient of budfertility on three cultivars~ Superior, FlameSeedJess and Thompson Seedless. The investigation included four treUis systems~ Spanish Parron (SP), Gable (0), Y shape (Y) anddouble(I). Thegrapevineswere eight years old grownin a sandy loam soil and irrigated by the drip irrigation system, spaced at 1.5 X 3.5 meters apart in Gable, Y and T system, while they wen: 3.0 X 3.5 meters apart in Spanish Panon system. The vines were cane pnmed in Superior and Thompson seedless with 60 budYmrow, whilespurprunedin Flameseedless with a loadof 40 budslm row. The results showed that both Spanish Panon and Gable wen: the best trellisingsystems, since they achievedthe bestyieJd and its components aswell asthe best physical properties of bunches, improYed the physical and chemical characteristics ofberries and ensured tbe best vegetative growth panuneters, dynamics of wood ripening, coefficient of bud fertility and total carbohydrates of canes in comparison with the other trellising system.

Summary in Arabic.

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